My new cnc router build

[woodworm]

I'm Gary and I am new to cnc and this is my first post, so I have been looking over the forums to pick up whatever is usefull.
Recently started to build a Joes 2006 from plans in solidworks format with a few variations. Got the x and y axis build, did have the use of my wood workshop but no cnc outfits.
The rest of the woodwork build is no real problem, I expect these to come with the controller and computer set up, lack a lot of know how, so I'm on a steep learning curve.

Here are some pictures of my build so far.

[jcoats]

Looks good. What are the rough dimensions you are using?

[woodworm]

Cutting area should be 5 x 2 foot

[Med-Pac]

Nice work......keep the pics coming!

Mike

[crocky]

Looking good so far

[woodworm]

I decided on 1/2" acme lead screws, it seems acme thread is hard to come by in Australia so after 3 weeks search I finally located some at United Fasteners in Brisbane.
Got them to day in one 3.6 meter length, had to take what I could get. Turned out to be an odd size 6 tpi.
Just as well that I waited before ordering anti backlash nuts. I just ordered them from Dumpster cnc. Hope to see them in a fortnight

[woodworm]

Got my anti backlash nuts and couplers last week, they are a nice fit. Put in the drive screws for the x and y axis, ran them with my power drill at 2200 revs, (that would translate to 330inch/min,will be running it a lot slower) without hardly any whip over the x axis and none over the y axis and running very smooth.

The z axis is still giving me some trouble, not nearly smooth enough for my liking, so I'll probable redo it.

Attached a few pictures of y axis details

[crocky]

What is the problem with the Z axis?

The piccy's look pretty good

[woodworm]

I constructed the Z axis acording to design, but somehow the bearings on the back of the steel rods are not running smooth enough like there is some binding. Possible not precise enough.
I will make another bearing block, see if I can make it moore precise.

For motors and elctronics I will use Xylotecs I think, haven't made up my mind yet, the motors will have to be 425 oz inch to do a proper job.

[Reflow]

Hey Gary,

Your machine is looking pretty sweet.
Im in Sydney with a pretty similar machine based on Joes Design. If you have any issues feel free to give me a yell. I'm from the electrical side of things, if that helps. My build log was here:
http://cnczone.com/forums/showthread.php?t=40699

On the motor front I've been using the 305/425oz-in motors from HobbyCNC and am able to jog at 250IPM and manage light cuts at 200IPM. 8TPI-2Start, effectively 4TPI threads.
With the Z axis I found that everything being parallel is really important, since the rails are so close together.

Hope some of that is useful,
Scott

[woodworm]

Hi Scott
I am sure I'm going to need some help with the electronics, but I am not up to that yet.
did some adjusting to the u bolts seems to be going better now.
Gary.

[woodworm]

Got my Z axis sorted out, its going quite smooth now.
I had to redo the Z axis slide.
Just a few pics to show progres.

Gary